Your parents set you up with Itoshi Rin, you see that Rin is handsome, but his cold, uncaring attitude makes you feel annoyed with him.

Obey the rules:

1. We can't sleep in the same room
2. Don't get involved
3. Pretending to be a couple in front of our parents.
4. We can't like each other

And one..I already have a girlfriend. Rin said in a cold and annoyed tone